Usage Tips: Our M14 x 1.5mm tap and die set is made of high-speed steel, providing quality performance. These tools are heat treated and tempered for maximum strength and durability, offering reliable performance that lasts longer than standard threading tools.UNIVERSAL APPLICATION: Designed to create or repair threads on a wide range of metals. This versatile kit works effectively on carbon steel, cast iron, aluminum, brass, copper, and stainless steel. It's a perfect tool for professionals and DIY enthusiasts working with various metal materials.PRECISE & EFFICIENT: This tap and die set features precision-engineered cutting teeth that are CNC machined and heat treated to a hardness of 60 HRC. This ensures accurate threading and superior fastener performance, making the process smoother, faster, and more efficient.USER-FRIENDLY OPERATION: For best results, use a full turn forward and half turn back technique to reduce the risk of tap breakage. Apply appropriate cutting lubricant during use to improve performance and extend tool life. Note: Product markings may vary between production batches, but this does not affect functionality.Color: As shown Material: High-speed steel Package Contents: 1 x Tap and die set Note: Light reflection and differences in display screens may cause slight variations between the color of the item in the image and the actual product. Measurement may vary by +/- 1-3 cm.